LMH1251 - YPbPr 至 RGBHV 转换器和 2:1 视频开关

LMH1251是TI德州仪器公司的一款视频定时产品，LMH1251是YPbPr 至 RGBHV 转换器和 2:1 视频开关，本站介绍了LMH1251的封装应用图解、特点和优点、功能等，并给出了与LMH1251相关的TI元器件型号供参考。

LMH1251 - YPbPr 至 RGBHV 转换器和 2:1 视频开关 - 视频定时 - 视频：广播和专业 - 德州仪器

产品描述

The LMH1251 is a wideband 2:1 analog video switch with an integrated YPBPR to RGBHV converter. The device accepts one set of YPBPR inputs and one set of RGB/HSYNC/VSYNC inputs. Based on the input selected, the output will be either a decoded TV or buffered PC video signal.

The LMH1251 has a SYNC separator and processor that is capable of extracting sync timing information from both Standard Definition Television (SDTV) and High Definition Television (HDTV) inputs. It provides bi-level sync, and tri-level sync separation.

The color space conversion from YPBPR to RGB in the LMH1251 is realized with a very high precision fully analog dematrixer which provides superior chroma accuracy that is less than 2.5% of amplitude and 1.5° of phase error on a vectorscope. It is equipped with a smart video detection circuit which automatically senses SDTV and HDTV video formats and applies the appropriate color space conversion.

The LMH1251 is capable of handling SDTV, HDTV, XGA, SXGA, and UXGA video formats, which makes it an ideal solution for enhancing value in applications ranging from LCD monitors, to set-top boxes, to projectors. The LMH1251 is part of the LMH high speed amplifier family, and is offered in a 24-pin TSSOP package.

产品特性

YPBPR to RGBHV Conversion
YPBPR Path: 70 MHz, −3 dB, 700 mVPP Bandwidth
RGB Path: 400 MHz, −3 dB, 700 mVPP Bandwidth
Supports PC Video Display Resolutions up to UXGA (1600 x 1200 @ 75 Hz)
Supports 480i, 480p, 576i, 576p, 720p, 1080i, and 1080p
Smart Video Format Detection for SD and HD
Power Save Mode

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